英和和英

the Visinel secret coding table

Crack a code

a unit used for gene information, called codon

to cipher a message

in a cryptographic manner

break a code

break the code

a cryptograph

a Visinel secret coding

the structure of a secret code

write in cipher

a cipher-key

a code called Playfair cipher

to wire in cipher

a message written in code

a private code

sign and countersign

a line of business dealing with secret codes

You are not allowed to pass unless you give the word.

Give the password!

cryptography

in cipher

to decipher a code―decode a message

a cipher telegram

the secret code called Enigma code

crack a code

a code that changes its key at every block or bit

act of writing in code or cipher

in code

of or relating to cryptanalysis